300mm Brake Conversion Details


Dunsy

Dunsy

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Joined
Feb 21, 2008
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As a few people are asking about this i thought i would put up a quick post about it

You will need (as a minimum)

300mm OEM ATR Discs
ATR Twin pot Calipers and carriers
OEM ATR/ITR Pads
Braided Brake lines (Recommended)

This is how to do it

The ATR Discs will fit straight on the EK9 Hubs

The Calipers require spacing from the disc with 2 washers (3mm i think), one top and one bottom.

Brake pads are Easy

Bleeding (Google it)

Bed your discs and pads in.

DONE

Sorry for the super quick write up but im leaving work 5 mins ago!

Will get photos and write a better explanation soon!


Edit to add:

To fit these brakes to a 98 spec Integra it is the exact same process as above except you do not require the spacers for the calipers as they fit perfect with no adjustment :)

Fitting a 15" wheel over these brakes

I Chose the Team Dynamic pro Race 1.2 on part recommendation from a friend who had these fitted to his EK4 with these brakes before...The EK4 has a thinner Hub though :nono: Which i didnt find out until half way through "modifying" my calipers :p

DSC01042.jpg


There was a bit of trial and error while doing this, trial fit the wheel then take some more caliper off evenly and just continue until the wheel goes on and rotates freely

DSC01047.jpg


I Went for a 40 Offset on the wheels and had to use a 5mm spacer aswell. There is ALOT of front clearance on the caliper but it is close to the sidewall of the wheel

Hope this Update has helped some people :D

Oh and just to say i got the wheels from Revolution247.com! Brilliant Guys and very helpful and friendly
 
Last edited:
hehehe thanks for the info! +rep for you :)
 
Sounds easy enough lol Good info mate. Cheers

I take it you can use EK9 pads and brake lines?
 
I used my Mugen Stainless brake lines and ATR pads mate

I Suppose EK9 pads may fit aswell because you can run ITR pads and they are the same as EK9 pads (someone correct me if im wrong)

Il try and get some photos this weekend of washer placement etc
 
Nice, cheers for the write up Dunsy. Do you need a min 16" rim to run these brakes then? Take it they won't fit under EK9 15's?
 
I know for a fact they will fit under

15" team Dynamic pro Race 1.2
15" Compomotive MO

Thats all i know of so far, im not sure if you can Skim the caliper or anything like that but i personally run 16" Slipstreams and they have plenty clearance

If i enjoy my track day as much as i think i will im going to look into squeezing them under OEM Wheels
 
this is proven to be useful......as alot of person will oso wonder whether 15' Spoon SW388/Regamaster Evo will fit in also^^
 
Amaury_Reno said:
this is proven to be useful......as alot of person will oso wonder whether 15' Spoon SW388/Regamaster Evo will fit in also^^
Click to expand...

My 16" Rota Slips Only JUST Fit over, so i wouldnt imagine the spoon wheels will fit
 
yeah sorry...i had a super busy weekend. Moved into our new unit and im going to see a car for the Mrs tonight but il try and get photos done this week at somepoint
 
Is there an equivalent 300mm setup that can be fitted to the 4 stud EK4 hubs? Or are we limited to the 282mm conversion?
 
drilling the discs is the only way i know of just now yeah
 
Right, im going to my Unit on friday and will make a point of taking my camera to get you guys some pictures of the brakes fitted :)

I Will soon be able to give a write up for 96 Spec ITR Conversion aswell

We did a 98 Spec ITR last week and its almost an identical process to the EK9 except the calipers do not require spacing

Info added to first post :)
 
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